Greater portability with smaller devices. It's one-third the size of MagicGate Memory Stick media with all the same great features. MagicGate technology provides a secure environment to download and playback copyright protected content. Enjoy copyright protected files with MagicGate Memory Stick Duo media and MagicGate compliant devices. And with its simple, supplied adapter, MagicGate Memory Stick Duo media can be used in any standard size slot.